| Crash location | Unknown |
| Nearest city | Bethel, AK
60.792222°N, 161.755833°W |
| Tail number | N20086 |
|---|---|
| Accident date | 13 Jul 1992 |
| Aircraft type | Short Brothers SC7 |
| Additional details: | None |
INADEQUATE SECURITY OF THE CARGO WHICH SHIFTED REARWARD DURING THE TAKEOFF ROLL. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: THE OVER GROSS WEIGHT CONDITION, AND THE IMPROPER ALTERATION OF THE TIE DOWN RINGS BY THE OVERHAULING MAINTENANCE FACILITY.